|
| year | production | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | .12 | NA |
| 1987 | .26 | 124.52 % |
| 1988 | .27 | 4.35 % |
| 1989 | .21 | -23.27 % |
| 1990 | .20 | -5.25 % |
| 1991 | .15 | -25.39 % |
| 1992 | .09 | -40.91 % |
| 1993 | .07 | -17.12 % |
| 1994 | .14 | 88.79 % |
| 1995 | .02 | -87.35 % |
| 1996 | .02 | 21.03 % |
| 1997 | .04 | 78.25 % |
| 1998 | .00 | -90.42 % |
| 1999 | .00 | -10.70 % |
| 2000 | .00 | -2.21 % |
| 2001 | .04 | 1,029.36 % |
| 2002 | .00 | -92.60 % |
| 2003 | .00 | -13.90 % |
| 2004 | .00 | -19.28 % |
| 2005 | .00 | 10.00 % |
| 2006 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
|
|
